Q: What are the factor combinations of the number 55,021,156?

 A:
Positive:   1 x 550211562 x 275105784 x 1375528931 x 177487662 x 887438124 x 443719167 x 329468334 x 164734668 x 823672657 x 207085177 x 106285314 x 10354
Negative: -1 x -55021156-2 x -27510578-4 x -13755289-31 x -1774876-62 x -887438-124 x -443719-167 x -329468-334 x -164734-668 x -82367-2657 x -20708-5177 x -10628-5314 x -10354


How do I find the factor combinations of the number 55,021,156?

Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 55,021,156, it is easier to work with a table - it's called factoring from the outside in.

Outside in Factoring

We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.

1 55,021,156
-1 -55,021,156

Why are the negative numbers included?

When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 55,021,156.

Example:
1 x 55,021,156 = 55,021,156
and
-1 x -55,021,156 = 55,021,156
Notice both answers equal 55,021,156

With that explanation out of the way, let's continue. Next, we take the number 55,021,156 and divide it by 2:

55,021,156 ÷ 2 = 27,510,578

If the quotient is a whole number, then 2 and 27,510,578 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 27,510,578 55,021,156
-1 -2 -27,510,578 -55,021,156

Now, we try dividing 55,021,156 by 3:

55,021,156 ÷ 3 = 18,340,385.3333

If the quotient is a whole number, then 3 and 18,340,385.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.

Here is what our table should look like at this step:

1 2 27,510,578 55,021,156
-1 -2 -27,510,578 -55,021,156

Let's try dividing by 4:

55,021,156 ÷ 4 = 13,755,289

If the quotient is a whole number, then 4 and 13,755,289 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 4 13,755,289 27,510,578 55,021,156
-1 -2 -4 -13,755,289 -27,510,578 55,021,156
Keep dividing by the next highest number until you cannot divide anymore.

If you did it right, you will end up with this table:

12431621241673346682,6575,1775,31410,35410,62820,70882,367164,734329,468443,719887,4381,774,87613,755,28927,510,57855,021,156
-1-2-4-31-62-124-167-334-668-2,657-5,177-5,314-10,354-10,628-20,708-82,367-164,734-329,468-443,719-887,438-1,774,876-13,755,289-27,510,578-55,021,156

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